linux/arch
David Gibson 9a94c5793a [PATCH] powerpc: More hugepage boundary case fixes
Blah.  The patch [0] I recently sent fixing errors with
in_hugepage_area() and prepare_hugepage_range() for powerpc itself has
an off-by-one bug.  Furthermore, the related functions
touches_hugepage_*_range() and within_hugepage_*_range() are also
buggy.  Some of the bugs, like those addressed in [0] originated with
commit 7d24f0b8a5 where we tweaked the
semantics of where hugepages are allowed.  Other bugs have been there
essentially forever, and are due to the undefined behaviour of '<<'
with shift counts greater than the type width (LOW_ESID_MASK could
return non-zero for high ranges with the right congruences).

The good news is that I now have a testsuite which should pick up
things like this if they creep in again.

[0] "powerpc-fix-for-hugepage-areas-straddling-4gb-boundary"

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-25 22:12:45 +11:00
..
alpha [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
arm [ARM] Shut up gcc warning in clps7500 core.c 2005-11-21 17:03:15 +00:00
arm26 [PATCH] sched: disable preempt in idle tasks 2005-11-09 07:56:33 -08:00
cris [PATCH] sched: disable preempt in idle tasks 2005-11-09 07:56:33 -08:00
frv [PATCH] move pm_register/etc. to CONFIG_PM_LEGACY, pm_legacy.h 2005-11-13 18:14:10 -08:00
h8300 [PATCH] sched: disable preempt in idle tasks 2005-11-09 07:56:33 -08:00
i386 [PATCH] PCI: direct.c: DBG 2005-11-23 23:04:27 -08:00
ia64 [PATCH] kprobes: Fix return probes on sys_execve 2005-11-23 16:08:39 -08:00
m32r [PATCH] sched: disable preempt in idle tasks 2005-11-09 07:56:33 -08:00
m68k [PATCH] m68k: convert thread flags to use bit fields 2005-11-13 18:14:14 -08:00
m68knommu [PATCH] m68knommu: move some platform irq support out of irq.h 2005-11-07 08:00:47 -08:00
mips [MIPS] Update defconfigs 2005-11-17 16:23:58 +00:00
parisc [PARISC] Remove unused variable in signal.c 2005-11-17 16:43:52 -05:00
powerpc [PATCH] powerpc: More hugepage boundary case fixes 2005-11-25 22:12:45 +11:00
ppc powerpc: Fix a couple of compile warnings for 32-bit compiles 2005-11-18 15:54:12 +11:00
s390 [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sh [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sh64 [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sparc [PATCH] unpaged: fix sound Bad page states 2005-11-22 09:13:43 -08:00
sparc64 [PATCH] unpaged: fix sound Bad page states 2005-11-22 09:13:43 -08:00
um [PATCH] uml: eliminate use of libc PAGE_SIZE 2005-11-22 09:13:41 -08:00
v850 [PATCH] v850: use generic hardirq code 2005-11-15 08:59:20 -08:00
x86_64 [PATCH] kprobes: Fix return probes on sys_execve 2005-11-23 16:08:39 -08:00
xtensa Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel 2005-11-11 09:24:26 -08:00